158489546 has 32 divisors (see below), whose sum is σ = 253089792. Its totient is φ = 74321280.

The previous prime is 158489489. The next prime is 158489581. The reversal of 158489546 is 645984851.

It is a super-2 number, since 2×158489546² = 50237872382572232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 158489494 and 158489503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399020 + ... + 399416.

It is an arithmetic number, because the mean of its divisors is an integer number (7909056).

Almost surely, 2^158489546 is an apocalyptic number.

158489546 is a deficient number, since it is larger than the sum of its proper divisors (94600246).

158489546 is a wasteful number, since it uses less digits than its factorization.

158489546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614.

The product of its digits is 1382400, while the sum is 50.

The square root of 158489546 is about 12589.2631237893. The cubic root of 158489546 is about 541.1697846338.

The spelling of 158489546 in words is "one hundred fifty-eight million, four hundred eighty-nine thousand, five hundred forty-six".